Car-coupling.



PATENTED SEPT. 11, 1906.

W. S. SGHROEDER.

GAR COUPLING. APPLICATION FILED APR. 30, 1906.

2 SHEETS-SHEET 1.

.r. r W 6 W N0. 830,857. PATENTED SEPT. 11, 1906.

W. S. SCHROEDER.

OAR COUPLING;

2 SHEETS-SHEET 2.

I 111/ e/zzar I Wdlz'am @Jc/woeder U ITED s'rArns PATENT OFFICE.

I WILLIAM S. SCHROEDER, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE- HALF TO CHARLES H. FERRY, OF CHICAGO, ILLINOIS.

CAR-COUPLING.

Specification of Letters Patent.

Patented Sept. 11, 1906.

To all whom it may concern:

Be it known that I,WILLIAM S. SCHROEDER,

a citizen of the United States, residing in Chicago, in the. county of Cook and State of Illi -5 nois,-have-invented a new and useful Improvement in Car-Couplers, of which the following is a specification.

My invention relates to improvements in car-couplers, and more particularly to improvements in car-couplers of the kind emloying a 'lon 'tudinal lockin bar lying on hwise 'in t e chamber of t e draw-bar an pivotally mounted at its rear end therein and provided with a lifting-pin for raising the front end of the locking-bar.

The object of my invention is to provide a car-coupler of this .kind or class which will be of a strong, simple, eflicient, and durable construction and at the same time have means for settin the lock in position for coupling and also for uncoupling and-also means for throwing the knuckle automatically open and in which these functions may be performed or results accomplished without increasing the number of parts or pieces composing the coupler.

My invention consists in the means I employ to practically accomplish this object or result that is to say, it consists, in connection with the draw-bar, pivoted knuckle, longitudinal locking-bar, and lifting-pin, in providing the rear arm or tail of the knuckle with an upwardly-extending knuckle-throwing incline or cam-surface and in providing I 5 the lifting-pin, which has a notch on its right side to receive the front end of the lockingbar, with a lock-set extension at its lower end adapted to engage a lock-set shoulder on the floor of the draw-head and sup ort the lock tension projecting downwardly and forwardly and having an u wardly and back- Wardly extending knuck e-throwing incline or cam-surface adapted to engage the coopcrating knuckle-throwing incline or cam-surface on the rear arm or tail of the knuckle, and thus throw the knuckle open when the lifting-pin is raised to the required extent.

' My invention further consists in roviding the lifting-pin at its back near its ower end with a shoulder or projection adapted to enin position for uncoupling, sa1 lock-set xgage the lower web or floor of the draw-head, and thus,'in cooperation with the other parts, prevent the look from cree ing or moving u ward excepting when the ock is lifted by tl ie lifting-pin.

My invention also consists in the novel constructionof parts and devices and in the novel combinations of parts and devices -herein shown and described.

In the accompanying drawings, forming a part of this s ecification, Figure 1 is a central vertical ongitudinal section of a carcoupler embodying my invention. Fig. 2 is a similar view showing the lock and liftingin in the lock-set osition with the knucllle thrown en ready forcouplin Fig. 3'is a horizonta section on line 3 3 0 Fig. 1. Fig. 4. is a detail horizontal section of the drawhead with the knuckle, lock, and lockingin removed. Fig. 5 is a cross-section on me 5 5 of Fig. 1. Fig. 6 is a detail side elevation of the locking-pin. Fig. 7 is a detail front elevation of the liftingin; and Fig. 8 is a detail partial plan view of the draw-head, showing the opening therein for the lifting-pin. Fig. 9 is a section on line 9 9 of Fig. 7.

n the drawings, A re resents the drawbar; A, the draw-head, aving the customary pivot-arm a and guard-arm a; B, the knuckle; C, the ivotin; D, the longitudinal locking-bar ying engthwise inthe hollow chamber A of the draw-bar; F, the liftingin, and G the liftin elever. I

T e bottom web or oor a of the drawhead has an opening a therein for the lower end of the lifting-pin to project through, and

at the front side of this 0 ening there'is pr'o vided a lock-set ledge or s oulder a, ada ted to engage the lock-set toe or edge f of the ockset extension'f .of the lifting-pin F, and thus set or hold the lock in position for uncoulpling. The front side of the opening a in t e bottom wall or floor of the draw-head is also furnished with an upwardlyand forwardly extending inclined or curved face a to enable the. lock-set extension f of the lifting-pin F to lifted above its lock-set position.

The knuckle B has the customary front arm or nose I) and rear arm or tail 1), furnished with the customary hook or projecroiect forward when the lifting-pin is tion 6 fitting in a recess or opening a in the draw-head and engaging a corresponding shoulder a on the draw-head to afford an additional anchorage for the knuckle in the draw-head when the knuckle is closed and partially relieve the pivot-pin C from strain. The rear arm or tail b of the knuckle is also provided on its under side with upwardlyextending knuckle-throwing incline or camsurface b adapted to be engaged by the cooperating upwardly and rearwardly extending knuckle-throwing incline or cam-surface f and thus throw the knuckle 0 en when the lifting-pin is lifted' by the li tin -lever G above the lock-set position and its ower end tilted forward and its upper end backward, as is done when the lifting-pin is thus raised to the required extent. The lifting-pin F is provided with a notch, recess, or cut-away portion 7" in its right side to receive the front end (I of the longitudinal locking-bar D, and thus cause the frontend of the locking-bar to be raised by the lifting-pin. This notch or recess in the lock forms an upper shoulder f, which fits above the locking-bar and a lower shoulder f which fits below the locking-bar and engages it to raise it. The lower shoulder 7' has a forwardly-projecting lip f, which is rovided with a' curved, beveled, or inclined ace f adapted to be engaged by the rear arm or tail 6 of the knuckle when the knuckle swings open, and thus dislodge the lifting-pin or its lock-set toe J from the lockset ledge or shoulder a on the draw-head, and thus cause the lock itself to rest directly upon the rear arm or tailof the knuckle and be set or supported in position for coupling when the knuckle again swings shut. The lifting pin F is also provided near its lower end at its back with a lock-creeping-prevention shoulder or projection f which is adapted to engage the edge a of the draw-head at the rear side of the lifting-pin opening therein when the lifting-pin is in its lowermost position, and thus hold the lock in its lowermost position and prevent its accidentally moving upward. The lip f on the lifting-pin by its engagement with the lockset ledge a of the draw-head holds this creeping-prevention shoulder in engagement with the cooperating leg or shoulder of the draw-head.

The longitudinal locking-bar. D has an integral pivot-lug dat its rear end fitting in a cooperating notch or bearing a in the lock pivot-lugs (L of the draw-head. The locking-bar D is also provided with a curved foot or dog (1 at its extreme rear end, furnished with a cam or curved surface (F, the foot or dog (1 fitting in a corresponding opening or recess a in the bottom wall of the draw-bar, which is furnished with curved or inclined faces 0, and a, so that the locking-bar D may have the necessary slight longitudinal or. forward and backward movement as reseassv quired to enable it to ro erly with the other arts. The fiontend of the locking-bar fits f 3 of the lifting-pin F, so that the lifting-pin may move forward at its lower end in res act to the locking-bar and so that the lockmgbar may also have a slight longitudinal movement lengthwise of the draW-barinde endent of the-locking-pin; The front en (1 of the locking-bar D is furnished with an inclined or beveled shoulder d, which enga es a cooperating beveled shoulder f 9 on the l1ft ing-pin F to aid in throwing the lower end of the ifting-pin backward when the lock and lifting-pin move to their lowermost position, and thus cause the lock-creeping-prevention shoulder on the lifting-pin to properly engage the cooperating shoulder on the draw-head and to keep or hold these arts in proper engagement. The front end d of the lock-D is also provided with a curved, beveled, or inclined face (1 at its extreme front corner, which engages or rides upon the upper face of the rear arm or, tail of the knuckle and facilitates the dropping of the look. into position when the knuckle closes. v

The opening a in the upper face of the draw-head is rovide'd with a notch a" to accommodate tl fe forwardly projecting inclined lip f 6 at the lower end of the lifting-pin F, and thus enable the lifting-pin to ,be removed from the draw-head.

The lifting-lever G is connected to the lifting-pin F by a clevis g and link 9. v

The rear face of the lifting-pin F is backwardly curved or inclined; as shown at f", and its front face at 7 correspondingly curved or inclined, the former curve orv incline f serving to throw the lower end of the cooperate 6 Yoosely-in the notch or recess lifting-pin forward as it is raised and the lattar-mentioned curve or incline f servingto give more room for the rear arm or tail of the knuckle as it swings open.

I claim v 1. In a car-coupler, the combination with the draw-bar and draw-head, of a knuckle having a rear arm or tail furnished'with a knuckle-throwing cam or incline on its under face, a longitudinally-extending locking-bar in the chamberof the draw-bar, and a vertically-movable lifting-pin having a notch or recess on one side to receive and engage the front end of the locking-bar, and provided with a downwardly and forwardly projecting lock-set extension furnished with a knucklethrowing cam or incline engaging said knuckle-throwing cam or incline on the rear arm or tail of the knuckle, substantially as specified. g

2. In a car-coupler, the combination with the draw-bar and draw-head, of a knuckle having a, rear arm or tail furnished with a knuckle-throwing cam or incline on its under face, a longitudinally-extending locking-bar in the chamber of the draw-bar, and a vertically-movable lifting-pin having a notch or recess on one side to receive and engage the front end of the locking-bar, and provided with a downwardly and forwardly projecting lock-set extension furnished with a knucklethrowing cam 0r incline engaging said knuckle-throwin cam or incline on the rear arm or tail of t e knuckle, said lifting-pin havin also at its back near its lower end a shoul er engaging the bottom web or fioor of the draw-head to prevent the lock from creeping, substantially as specified.

3. In a car-coupler, the combination with the draw-bar and draw-head, of a knuckle having a rear arm or tail furnished with a knuckle-throwing cam or incline on its under face; a longitudinally-extending locking-bar in the chamber of the draw-bar, and a vertically-movable lifting-pin having a notch or recess on one side to' receive and engage the front end of the locking-bar, and provided with a downwardly and forwardly projecting lock-set extension furnished with a knucklethrowing cam or incline engaging said knuckle-throwing cam or incline on the rear arm or tail of the, knuckle, the bottom web or fioor of the draw-head having a lock-set ledge or shoulder adapted to be engaged by the toe or edge of said lock-set extension of the lifting-pin, substantially as specified.

4. In-a car-coupler, the combination with the draw-bar and draw-head, of a knuckle having a rear arm or tail furnished with a knuckle-throwing cam or incline on its under face, a longitudinally-extending locking-bar in the chamber of the draw-bar, and a vertically-mOvable lifting-pin having a notch or recess on one side to receive and engage the front end 'Of the locking-bar, and provided with a downwardly and forwardly projecting lock-set extension furnished with a knucklethrowing cam or incline engaging said knuckle-throwing cam or incline on the rear arm or tail of the knuckle, the bottom web or floor of the draw-head having a lock-set ledge or shoulder adapted to be engaged by the toe or edge of said lock-set extension of the liftin'gpin, said lifting-pin having also a forwardly-projecting lip furnished with an inclined face adapted to be engaged by the knuckle-tail when the knuckle swings open and thus dislodge the lifting-pin from its lock-set position, substantially as specified.

5. In a car-coupler, the combination of a draw-head and draw-bar, with a knuckle, a longitudinally -movable locking bar lying lengthwise in the hollow or chamber of the draw-bar and having a pivotal connection therewith at its rear end, and a lifting-pin having a notch or recess on one side to receive the front end of the locking-bar and provided with an extension at its lower end having a curved or inclined face to engage provided with an extension at its lower end having a curved or inclined face to engage the knuckle-tail and throw the knuckle open, the knuckle-tail having a cooperating incline or cam, substantially as specified.

7. In a car-coupler,'the combination of a draw-head and draw-bar, with a knuckle, a longitudinally-movable locking-bar lying lengthwise in the hollow or chamber of the draw-bar and having a pivotal connection therewith at its rear end, and a lifting-pin having a notch or recess on one side to receive the front end of the locking-bar and' provided with an extension at its lower end having a curved or inclined face to engage the knuckle-tail and throw the knuckle open, the knuckle-tail having a cooperating inc'line or cam, the lower shoulder of the lifting-pin formed by the notch or recess therein having a forwardly-projecting lip provided with an inclined face, substantially as specified.

8. In a car-coupler, the combination of a draw-head and draw-bar, with a knuckle, a longitudinally-movable locking-bar 1 'ng lengthwise in the hollow or chamber 0 the draw-bar and having; a pivotal connection therewith at,its rear end, and a lifting-pin having a notch or recess on one side to receive the front end of the locking-bar and provided with an extension at its lower end having a curved or inclined face to engage the knuckle-tail and throw the knuckle open, the lifting-pin being also provided witha shoulder to prevent'creeping of the lock, substantially as specified. v 4

9. In a car-coupler, the combination of a draw-head and draw-bar, with a knuckle, a

longitudinally movable locking bar lying lengthwise in the hollow or chamber of the draw-bar and having a pivotal connection therewith at its rear end, and a lifting-pin having a notch or recess on one side to receive the front end of the locking-bar and provided with a projecting lip and an extension at its lower end having a curved or inclined face to engage the knuckle-tail and throw the knuckle open, the knuckle-tail having a cooperating incline or cam, the lifting-pin being also provided with a shoulder to prevent creeping of .the look and said lip on the lifting-pin cooperating with the drawhead to hold said creeping-prevention shoulder in engagement with the draw-head, substantially as specified.

10. In a car-coupler, the combination with tension of the lifting-pin having an inclined a draw-head, a draw-bar, of a knuckle, a lonor curved face to engage the rear arm or tail gitudinally-extending locking-bar, and a verof the knuckle, substantially as specified.

tically-movable lifting-pin adapted to tilt WILLIAM S. SCHROEDER. 5 forward at its lower end and backward at its Witnesses: v

upper end, and provided with a knuckle- H. M. MUNDAY,

throwing extension at its lower end, said ex- PEARL ABRAMS. 

